From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754338AbdJIMpD (ORCPT ); Mon, 9 Oct 2017 08:45:03 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:41792 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751550AbdJIMo4 (ORCPT ); Mon, 9 Oct 2017 08:44:56 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Jaegeuk Kim" Date: Mon, 09 Oct 2017 13:44:24 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 010/192] f2fs: try to freeze in gc and discard threads In-Reply-To: X-SA-Exim-Connect-IP: 2a02:8011:400e:2:6f00:88c8:c921:d332 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.49-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Jaegeuk Kim commit 1d7be2708277edfef95171d52fb65ee26eaa076b upstream. This allows to freeze gc and discard threads. Signed-off-by: Jaegeuk Kim [bwh: Backported to 3.16: drop changes to discard thread] Signed-off-by: Ben Hutchings --- --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -35,13 +35,14 @@ static int gc_thread_func(void *data) wait_ms = gc_th->min_sleep_time; + set_freezable(); do { + wait_event_interruptible_timeout(*wq, + kthread_should_stop() || freezing(current), + msecs_to_jiffies(wait_ms)); + if (try_to_freeze()) continue; - else - wait_event_interruptible_timeout(*wq, - kthread_should_stop(), - msecs_to_jiffies(wait_ms)); if (kthread_should_stop()) break;